Sharpening mechanism



April 9, 1935. L, v ARQNSON 1,996,788

SHARPENING MECHANISM Filed June 25, 1932 INVENTOR Lauzls M1 012 sow ATTORNEYS Patented Apr 9, 1935 Among the objects of this inventionis the o vi qn of e ti r d Sha n n ani including arazor blade supportingmeans and a sharpening device so related and mountedas to facilitate the conditioning of the mechanism for,

honing or grinding each facelof bothedges': of

a double edged safety razor blade.

A more specific object of the ventionisf 'to providemeans for. supporting a sharpening'roller movably so as to permit the same tobe "moved into and out of cooperative relation with both faces of the'edge's of the razor blade; iCertainjof the improvements, are applicable tofsingle-ed'g'edi razor blades, while other features are specially I line 2+2'of Fig. 1;'

useful in connection with sharpening double.- edgjed safetyra'zor blades.

1 Other: objects pf the, in'vention will @par'rr in,

the following description taken in connection with the drawing, in which I o,

- 1 is [a ,top plan view of the sharpening mechanism; Fig, 2 is a section taken substantiallyhn the Fig.3 is a longitudinal diametial 'sectiontaken substantially on the line 3i 3 or Fi'g; y

Figi lis a section on" the line 4-'4of "Fig.1; Fig. 5 is a section substantially similar t'ojFig'; 2 but with the parts shown in another positiongj .Fig. 6 is i v 1 4 V "e s upporting frame comprisesiareel in cluding disk-like end members 1 1 and 8 and spacing rods 9' and. ill, said en d membersv and spacing rods being secured together'by screws II. The spacing rods are preferably located. in a diametral plan'e for purposes laterhset forthg The. end member 1 is preferably providedwith ahub l2flconstituting'a bearing fora short shaft l3 on which anoperating crank handle I4 is nonrotatably mounted. The handle-maybe secured onthe shaft bya screw bolt 15. The inner end of the short shaft "I3 maybeprovided withan enlarged portion" I 6 onwhich is non-ro'tatably mountedfa gear l'l i which will be referred to later.- The inner end of the short shaft is provided with a cylindrical rces's" constituting a bearing for the reduced end l8 of a razor blade supporting shaft IS, the other end vof' which may be provided with a conicalrecessreceiving the conical end ZO of a screw bolt 2| "threadedly mounted in the" endmernber 8 alndadapted to belocked in adjusted position by a lock nut 22; Theshaft: IB i'nay be providedwith a reduced portion 23'on which is secured a disk 24 bearing against a friction disk "25 seated loosely in a; recess in the side of thegear I'l.

As will be obvious, ,when the operatinghanr e 1,996,788 e a J a a Y Lou iSaVJ Aron Son;Newark; N. J.,j assignorrto. Q I iMetalWorks,1Inc.,acorporationofNew'Jersey l :A D D l ipati0i1'Jiir1e2511932 s a z 1 v o 6 Claims. (01 51-96) e yention reheated sharpening mecng; anisznfor sharpening razor blades andthe like,

a section taken on the line of dle' I4 is rotated fin"either'direction to'rotate the gear l 'Lfthe shaft l9 which supports the razor blade 28 will; be 'inoved in" the same.'directionv by frictional engagement between the friction. disk zs'and the disklfi and the surface or the rec "s; inthef gea ing The an'iountfof i friction p tween these'parts may be increased or diminish d by adjusting ithelscrew, bolt 2l.

For the purpose of securingthe meditate"? in position 'onlthe' shaft'jfi the'Tcentralporti n;

or th'el'shaft is preferably.madei'fsemicylindrif' Cally form; as' findicatedi at" 21; to; provide a; seatfora razor lblad e and'to receive alsenii-cy lindrical V clampingfjmernber I 32 apertured ,at 28 and 29'toIr'eceive aligning pinsY30j 3! on screw bolt 33 which" prererably has; a swivel can; nection with thefclag npmg' member 32;; I

The "sharpening .deviceemployed may be in pan; e n twh chgare ed ce nd 'p ported in bearings "on arms 3 11and 38' securedt'to The; endjmembers I and fl arej preferably provided with arcuate slots "40 and '41 in which' fthe shaft ea i on he a ms 31 a 38 pera -Z Se u a to the sleeve 391sfan 'a:rrr1"*'42 provided with a slot" in which "operates apin '44 mounted J-f centrically on a-disk '45 fixed on 'a" shaft ext nd-j ing through the end member 1 and" carrying, at its l r; end 149 r t n ev r 6-13:,

operating L he' i r 4. at .s arpe i n i o may bemov'ed mt "t e positions indieated min drawing. In'Fig. 5,"'the sharpening 1-oller isgin iv v ,v t sharpenthe'raz'or jblade.

' Cooperatingi th the gear is a small ger r 18 mounted on astud supported in theend member 1 infithe-"reiriaining"figuresit' is e in position rotatably"mounted :on theiShaft 36 which 'suphandle to move onefaceof one; edge of thef-r'a zor blade cooperative relation with theroll'er, By moving he-cram; I4 first injone direction and then in' the otherdirection the faces or the edges on the same side of theraz'pr'blade may behone'd or ground; "If it is desired to none or grind the opposite-facesitj will onlyflb'enecessary to ove I I the lever into the position ShQWIl'fiIl Fig,

" W W ls the seatll giThe clamping member 32 ispref o erablyjsecured tothe "shaft 1! 9- by me n yof form of a roller 'non-frotatably mounted on'ja'; 9;

o Y r posit on to permit rotation of the razor-blade o. t H v 9- and with which is adaptedtofmesha gear 49 nont a except as neoeesitatedlby' the prion-art.

respect .to the razor blade supporting shaft a sufficient distance .to permit the razor blade to be turned so that the opposite faces of the edges of the blade wil1 bein position totbe honed or ground,- after the rolleris againmovedjintdthe position shown in Figs. 2 and 6.

' For conveniently holding the sharpening mech-- anism in the left hand as the crank is being .op-;

erated by theright hand, I provide snowinghandle 50 which is provided witha slot remove;

ablyengaging the spacingrod, lodan d-WhiCh is' t the holdingjhandletfl and the operating crank handle 14 resting on'theltable'jjand the shaft [9 may then be moved intoja'position inwhich the spacing rodsj9 and IOwill aotias aguardfor the edges of the razor blade'. After one ,ofjthelfacles of both edges of the razor bladehasfbeen'honed or groundby turfiing thecrank handle ilfil'first;

in one direction andthen' in the opposite 'di'rec-l tion, the mechanism maylbe' conditioned: to hone" or grind the opposite faces. by moving the sharpening rollerlintoilthej positionshownin. Fig. 5,

then rotating the'razor blade'from the solidline position to the broken lineposition, Eig,,6, an

' then moving the sharpening-roller; fi'G Lthe'poQ sition shown in 6. The opposite ,facjes, ,as indicated by the'broken linesinfEis. 6, ma'y'now 40 be honed or'g'round byopeiatingthe, crank handle. l4 asbefore. V f l q I While this invention has been deso f bfid with particularity as to thefsinglejembodirnent dis; closed,'it;is obvious thatfother embodiments may be suggested to those skilled ingthis a'rtf'after understanding'this invention; and it ,is' to be] unQ-I. derstoo'd that words of description imported into the claimsare not to be, cons deredfla's limitations" WhatI claimis: j H v V 1.; In a sharpening 'me'chamsmptne combination of a frame, a razor, blade supporting shaft mounted for rotation in said frame, aro'tatable shapening device, means forrotating said' sharp-.

'ening device in either direction, a frictional drive between said firstmentioneimeans and said razor blade supporting ,shaft for moving said razor blade into engagement with saidsharpening de V vice, and means movably supporting said device 6 V on said frame for movement into contact witha razor blade supportedonifsaidl shaft :and for movement away from said shaftflto permit the razor blade, to be moved onthe opposite side of said sharpeningdevic'e for the purpose ofdpere mitting both faces of fan edge oftheblade to be honed or ground. f f; v

2. In a sharpening mechanism, the cornbinae tion of aframe, ajrazor blade'suppq tinefls aa mounted for rotation framela rotatable sharpening device-means fer-reari g" said sharpening device in either directiomarfrictional drive between said first mentionedj means and said razor blade supporting shaft forfl movin gizsai'd' razor blade into},-engagement,;-withsaidl sharpening device,and'meansjmovably supporting said device on said frame for movement into contact with a razor blade supported on said shaft and for movement away from said shaft to permit the razor blade to be moved on the opposite side of said rotatable sharpening device I for the purpose of permitting bothl facesof an edge of the blade tobe'honed or ground. v

3. ,In a sharpening mechanism, the combina- :1

tion of a frame, a razor blade supporting shaft, 7 l

a, rotatablesharpening roller, a driving means fon'rotatingsaid. roller, a frictional connection between said driving means and said shaft for causing 'a razor blade on said shaft to move into contact with said roller upon movement of said driving means, and movable means for supporta ing said roller for movementinto cooperative position Witha blade on said shaft and' for movernent away'from' said shaft beyond'the edge of said blade wherebythe opposite face "of an edge of the blade may be presented tosaid roller by first'moving said blade to the'opposite side of said 'rollerand then moving the roller into cooperative' relation with said blade.

4. In a sharpening mechanism, the combina-' tion of a J frame including end members and spacing mer'nbers,*'a sharpening rollerybearing elements for said sharpening roller" pivotally mounted on one of said spacing memberspa'razor blade supporting shaft supported in 'said "end members, means'for rotating said'roller and for frictionally rotating said shaft to move the blade carried by said shaft into contact with said roller,

and means for moving said roller awayfrom said blade for-p'erniitting saidshaftfto be" rotated to present the opposite face of the edgeof the razor blade in position to cooperate with said roller after'said roller has been moved into its normal positionrwith respect to said shaft. 1

5. In a sharpening mechanism, the combination of a frame including end members, a razor blade supportingmeans, a rotatable sharpening roller, a pair of pivotally mounted arms for supporting said roller, aslotted operating arm'connected to said p'ivot'allyjmounted arms, a pin cooperating with said slot, and a lever mounted on said end member for, moving said pint transversely with respect to" said operating arm for moving said roller into and out of cooperative relation with'resp'ect to a razor'bladej carried by said razor blade supporting means;

6. In a sharpening mechanism,- the combination of a frame, a rotatable sharpening roller mounted in said frame,'a razor blade supporting shaft I'm'o'untedi'in said frame and having provi-- sion for. supporting va double-edged razor blade,

common driving means for rotating said sharp ening ,roller'IandIshaftin' the same direction to move ne face of, one edge-of said razor blade into engagement with one. side of said roller as said roller is beingrotated, a frictionaldrive between-said shaft and common drivingmeans whereby said face of said edge of the blade may be held in contact with said side of the roller as the .roller. is1'otated,,said roller and shaft being rotatable in the opposite direction to bring the face .of the other edge of the blade, located on thesame side of the bladefinto cooperating relation withthe other side of theroller, and means for moving said roller away from said, shaft wherebya bladeon' said s'haftmay berotated by said driving means to presentit's other faces to said roller upon operationof said driving means after said roller has been returnedinto function I J iP QR-aw y LOUIS v. ARoNsoN; 

